|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Ostreida - Ostreidae
It was reranked as Actinostreon by Vokes (1980), Sepkoski (2002) and Aberhan (2010).
It was assigned to Lopha by Bayle (1878); to Lophinae by Vokes (1980); to Pterioida by Sepkoski (2002); and to Palaeolophidae by Aberhan (2010).
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.